I seem to be having trouble querying for files by tag. Are tags for files not like tags for posts?
$args = array(
'numberposts' => 10000,
'tag' => 'training,timeline,resource',
'orderby' => 'post_date',
'order' => 'DESC',
);
$posts = get_posts($args);
print_r($posts);
This retrieves posts with those tags but not files with those tags. Help?